1 Features

• IEC 61000-4-5 surge protection:

– 3.5A (8/20μs)

• IEC 61000-4-2 ESD protection:

– ±22kV contact discharge

– ±30kV air gap discharge

• 12V working voltage

• IO capacitance:

– 1.5pF (typical)

• Bidirectional polarity to support positive and

negative voltage swings

• 2 channel device provides complete ESD

protection with single component

• Small, leaded SOT-23 allows low cost automatic

optical inspection (AOI)

• IO capacitance:1.5

2 Applications

• End equipment:

– Factory automation and control

– Building automation

– Grid infrastructure

– HVAC systems

– Security systems

• Interfaces:

– RS-485

– RS-422

3 Description

The ESD562 is a bidirectional ESD protection diode

for RS-485 and RS-422 interface protection. The

ESD562 is rated to dissipate ESD strikes beyond

the maximum level specified in the IEC 61000-4-2

international standard (±22kV Contact, ±30kV Airgap).

The device can clamp 8/20μs surges with peak

pulse currents up to 3A in accordance with the IEC

61000-4-5 standard.

This device features a 1.5pF (typical) IO capacitance

enabling high-speed interface protection. The low

clamping voltage in the positive and negative direction

help protect systems against transient events. This

protection is key in industrial systems which require a

high level of robustness and reliability.

The ESD562 is available in a small leaded SOT-23

(DBZ) package.